Inclosed resistance.



PATENTED NOV. 26, 1907.

H. J. WIEGAND. INGLOSBD RESISTANCE. APPLIOATloN :um oo'r. 30,1905.

UNITED srATEs PATENT oEEIoE. j

HENRY J.' WIEGAND, OF MILWAUKEE, WISCONSIN, ASSIGrNOR` TO TIIE CUT-LER-HAMMER MANUFACTURING COMPANY, OF MILWAUKEE, WISQONSIN, A CORPORATION OF WIS- CONSIN.

INICLOBED RESISTANCE.

specification uf Letten Patent.

Patented Nev. ae, 1907.

E To all whom it may concern.'

Be it known that I, HENRY J. WIEGAND, a citizen of the United States, residin at Milwaukee, in the county of Milwau ee and State of Wisconsin, have invented new and useful Improvementsin Inclosed Resistances; ofl which the following is a full, clear, concise, and exact description, reference being had to the accompanying drawing, forming a part of this specification.

My invention relates to improvements in inclosed resistances. It applies especially to structures wherein the resistance is carried by a base which is made of porcelain, soa stone, slate, glass or other fragile and britt e material. T'liese structures have heretofore been objectionable, due to the fact that the base might be easily broken, and if it were broken the structure would be rendered unto be broken, .and if it becomes broken the tion, l sha structure may still be used.

It will, of course, be understood that my invention embodies various features besides that which has reviously been set forth, and the same will) be apparent from theexplanation thereof whic is hereinafter contained. Furthermore, it will be understood that m f invention may be applied to structures of various form?. l y

For the u ose o ex aining my invenli) slhpow and depscribe a resistance unit which has been Worked out in practice to embody the various features of my invention.

The several views' in the accompanying drawing are as follows:

Figure 1 is an elevation of the resistance unit. Fig. 2 is a longitudinal sectional view on the line 2-2 of Fig. 1. Fig. 3 is a cross sectional view on the line 3-3 of Fig. 1, and Fig. 4 is an elevation of several of the resistance units mounted upon a supporting frame.

The resistance 1' is preferably Wound upon a base 2, which may be composed of porcelain, slate, glass, soapstone or any other suitable material. The base may be cylindrical in form as shown in the drawing, and it is preferably provided with an axial hole or pass e 3. f

Eac end of the base is pref ably provided with an outwardly'extendi flange 4, which is provided with a depressed shoulder 5. The resistance is preferably provided with leads or terminals 6, which may be connected thereto at any suitable points, and the base 2 is preferably provided with recesses 7 to receive the attached portions of the resistance and the leads'.

The base and the resistance `are preferably surrounded by a casing or shell 8. The ends of the casing preferably rest upon the shoulders 5 so that the same set below the edges of the flange to be insulated as shall be hereina'fter set forth. The casing is preferablyl formed from a piece of sheet metal which 1s bent int'o cylindrical form, and it is preferably held in shapegby means of straps 9. One end of each strap 1s preferably provided .with a slot 10 through which the/ other end thereof is passed and then bent over so as to fasten the ends together.

The leads l4 extend throu h bushings 11, arranged Within suitable holes or apertures in the casing 8 the same bein thereby insulated from the casing. Eac bushing is peferably provided with a flange 12 whichA ars against the inside of the casing, to` p revent it from being displaced from position.

It will, of course, be understood that the base and the casing may be of various forms and that the same may be associated with each other in different ways.

The casing 8 is `preferably filled with a solid filler 13 which will insulate the resistance from the casing. The casing is provided With a suitable aperture 14 throu h which the filler ma f be inserted. T e filler may be com ose of various materials, but it is prefera ly made of a cement or other suitable material which will set when hardened, thereby practically uniting the casing, the resistance and the base. Inasmuch as the filler will thus make the base,

the resistance and the casing substantially an' inte al structure, it will be difiicult to break t e base, and if the base should ever be broken, the casing and the cement will hold the broken 1parts together, so that the structure may st' l be used.

It will, of course, be understood that the 20 gages the arrangements and form of the partsA of the AStructure shown herein to illustrate my in.

15 ably mounted upona rod. or bolt 16 whichl extends between'crossieces 17 and passes 'throu h the hole 3 in t e base 2. The bolt -\is prearably held in position uponv the crosspieces by means of the head 18 which enlower vcross-piece, and the nuts 19 Which ,en age the upper cross-piece. The

rod is preerablypr'ovided with a nut 20 by means 'of which the resistance unit is held against the lower cross-piece.

inasmuch as the casing. 8 is carried by the base 2, it .isso insulated that leakage 'will 4not take place through the casing to the sup orting frame if the insulationf between .t e resistance and the casing be defective.

are mounted upon the supporting frame are electrically connected in series, the strain upon the insulating filler'of each unit will be ve small, due to the fact that the casing of eac unit is-insulated -from the casing of the-other units.

Where the resistance units are used in al. thereof may be connected rheostat, the leads to the switch contacts v in gan-y suitable Way. l It will, fof course, be

understood. that my invention is applicable to various purposes,

and that -certain features thereof may be applied to heating coils for electric heaters and to .other devices.

Various changes may be' made in the structure which has been particularly described herein 'without in any wayT depart-1 ing from my invention, and it will be understood that the appendedclaims are in`l tended to comprehe'n such changes. d Haaing thus described my what I c aim vas new and desire 'to Letters Patent, is:

invention, secure by 1. An .inclesed resistance comprising a base, a resistance carried thereby, and a casing surrounding said base and said re'- sistance, s aid casing being constructed land arranged tobe filled with a cement adapted to'be poured' into said casing in' a lasticl state and to 'set when hardened, w erebyy said casing,. said base yand said resistance aire united into practically an integral structure..

2.. An inclosed resistance comlprising' a base outwardly extending s base having outwardly Where the resistance units which.

- integral structure and adap ouldered ance and saidbase and carrie flanges, a resistance carried by said base,

and a casing surrounding said base and said resistancer and *having the ends thereof resting against. said flanges.`

3; An. inclosed resistance comprising a extending flanges, a resistance carried by said base, a casing supported by said flan es and inclosing said resistance, said base eing 'adapted toy insulate'saidcasin from a supporti 4. A n inclose resistance comprising a base having-outwardly extending flanges, a resistance carriedl by said base, a casing and supported by inclosing said resistance said flanges, said casing being constructed and arranged. to be' filled with. an insulating f materialadapted .to be poured into the casing ina plastic state and to set when hardened whereb material and t e base are united intoa pfractically integrald structure.

5. An base hav resistance carried by said base, a casing surrounding said resistancey and said base and having the ends thereof resting upon said fianges, said casing being constructed and arranged to be filledA with an insulating filler .adapted to be cured into the casing in a plastic state and) to set when hardened so as to make said base, said resistance and said 4(ilsling practically an integral structure.

6. insulating supporting basel having Voutwardly extendin flanges, a casing supported by said gauges and inclosing said resistance, said casing being filled with a solid material so as to-make said base, said ,resistance and rsaid casing` substantially an said casing being from a support by adapted to be insulated sai base.

7. An inclosed resistance comprising a substantially cylindrical base, a resistance wound upon said base, and a substantially cylindrical casing or shell surrounding said base and said resistance, said casing being filled with a solid insulating filler soy as lto make the base, the resistance, and the casing practically an integral structure and said base eing adapted to insulate support.

8. An inclosed resist-ancey comprising a. substantially cylindrical base,4 a resi-stancecarried by said base, and a substantially cy lindrical Vcasing or shell surrounding said b ase and said resistance, said casing being carried by said base and said base being Jeu tovinsulate said casing from a'support.

9. An inclosedresistance comprising. a

Vsubstantially cylindrical base, a resistance wound upd'n said base, and a substantially cylindrical 4casing surroundin said resistthe casing, the' resistance '/v 4inclcsed resistance comprising a g outwardly extending'iianges, a'

inclosedresistance comprising an by said base .130 A v 115. said casing from a at each en Yvided with a depressed shoulder, a casing.

so as to be insulated thereby from a support, said casing being filled with a solid filler.

10. An inclosed resistance comprising a substantially cylindrical base, adapted to be mounted upon a support, a substantially cylindrical casing carried by said base and arranged to be insulated thereby from said support, and a resistance inclosed within said casing. f

11. An. inclosed resistance comprising a substantially cylindrical base adapted to be mounted upon a su port, a substantially cylindrical casing or ell carried by said base and arranged to be insulated thereby from said support, and a resistance carried upon said base and inclosed within said casin said casing being filled with'y a solid ins ating .fillel l 12. An inclosed resistance comprising a base havin an axial hole extending therethrough, said hole being adapted to receive a rod to support said base, a casin carried by said base and adapted to be ins ated thereby from said rod, 'and a resistance inclosed within said casing.

13. An inclosed resistance comprising a substantially cylindrical base having an axial hole extending therethrough, said hole being adapted to receive a rod to su port said base and a casing carried by said? ase and insulated thereby from said rod, said casing being filled with a solid insulating filler.

14. An inclosed,resistance comprising a base havin an outwardly extending flange thereof, each flange belng prohavin the ends thereof resting upon said shoul ers and against said flanges, and a resistance carried by said base and inclosed within said casing;

15. An inclosed resistance comprising a base having an outwardly extending flange at each end thereofandan'axial hole extending therethrough, a resistance carried upon said base, and a casing or shell having the ends thereof restin upon said flanges, said base being adapte to insulate said casing y,from a support. 16. A11-inclosed resistance com rising an elongated base having an outwardly extendin flange at each end thereof, and an axial ho e extending therethrough, a resistance Wound upon said base, and a tubular casing or shell having the ends thereof resting upon said flanges, said base being adapted to insulate said casing from a support and said casing being filled with an insulating material. v 17. An inclosed resistance comprising a base having an outwardly extending flange at each end thereof and an axial hole extending therethrough, each flange being provided with a depressed shoulder, a resistance Wound u on said base, and a casing or shell having t e ends thereof resting upon said shoulders, said basebeing adapted to insulate said casing from a support.

18. An inclosed resistance comprising an elongated insulating supporting base having an outwardly extending flange at each end thereof and an axial hole extending therex through, each flange being provided with a de ressed shoulder, a resistance carried upon said base, a casing or shell inclosing said resistance and havin the ends thereof resting upon said4 shou ders, said basebeing adapted to insulate said casing from'a sup- ,port and said cas/ing being filled with a solid material so as to 'make said base, said 'resistance and said casing substantially an integral'v structure, and leads extendingr through said casing and connected to said resistance. s y,

19. An inclosed resistance comprising av substantially cylindrical lbase having an outwardly extending flange at each end thereof, each flange being provided with a depressed shoulder, a vsubstantially cylindrical casing having the ends thereof resting upon said shoulders and against said flanges, and a resistance carried by said base and inclosed within said casing.

20. An inclosed resistance comprisingl a base, a resistance carried thereby, and a casing surrounding said base and said resistance, said casing being formed from a single piece of sheet metal, and straps extending around said casing to hold the same in shape.

21. An inclosed resistance comprising a base, a resistance carried thereby, and a casing surrounding said base and said resistance, said casing being formed from a single piece of sheet metal bent around said base and said resistance, straps extending around said casing to hold the same in sha e, one end of each strap being provided wit a .slot through which the other end extends to fasten the ends of the strap together.

22. An inclosed resistance comprising a substantially cylindrical base having outwardly extending flanges, each flange being provided with a depressed shoulder, a substantially cylindrical casing having the ends thereof resting upon said shoulders, a resistance Wound upon said base, and leads connected'to said resistance, each lead being passed through a bushing arranged within a suitable hole in said casing.

23. An inclosed'resistance comprising -an elongated base having an outwardly extending flange at each end thereof and an axial passa e therethrough, each flange being rovi ed with a depressedshoulder, a tubuar casing having the ends thereof resting upon said shoulders, a resistance Wound upon said base, leads connected to said resistance, said leads being assed |through bushings arranged Within suitable apertures wound upon said base, a tubular veasing formed' freni a single piee of sheet inetals bentaround said base lto lnclose said resistin said easing, and afsolid insulating -iiller surrounding said resistance.

24.. An inclosed'resistance com rising an elongated'base having an outfard y extendingllange at each end thereof, each fiainge being provided with a depressed shoulder, a resistance woundyuponsaid'base, a tubular casing formed from a sin le ieee of sheet metal and having the en s t ereof restinv` upon said shoulders, said casing being fille with a so'lid insulating material, and leads connected to said resistance, said leads being passed 'through insulating bushings arranged within suitable apertures in said oaslng. L

2'5. An inelosed resistance com elongated base having an outward extend ing ange at each end thereof an adapted` to be mounted upon a support, a resistance said flange and said base being adapte( insulate said casing from said support, nneans for holding saldi/easing in shape, and leadsexterrdin through said casingand con neeted tosair resistance, said casing, s aid resistancelfand said base formed intosubs'tantially an. integral structure by means-of a solid` material arranoed Within said Casin and surrounding said l base.' Y

In witness.- whereof,v I have hereunto subscribed my name Witnesses. Y

' HENRY J. 'WIGAND risinga-n I 'Witnessesi A. H. BAnNIoKEL, J HAWKINS:

ance, the endsof, said casing being set upon Y in the presence of tworesistance 'and sair -1 

